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Financial Risk Management - Additional Information (Detail) kr in Millions, $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Jul. 31, 2024 USD ($) | Jan. 31, 2024 USD ($) | Dec. 31, 2024 SEK (kr) | Dec. 31, 2023 SEK (kr) | Dec. 31, 2022 SEK (kr)
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |
Percentage of probability level |  |  | 99.00% |  |
Description of Sensitivity analysis |  |  | The Company uses the Value at Risk (VaR) methodology to measure foreign exchange and interest rate risks managed by the treasury function. This statistical method expresses the maximum potential loss that can arise with a certain degree of probability during a certain period of time. For the VaR measurement, the Company has chosen a probability level of 99% and a one-day time horizon. |  |
Percentage of risk at confidence level |  |  | 99.00% |  |
Maximum foreign exchange positions |  |  | kr 45.0 |  |
Average of value at risk calculated |  |  | 12.4 | kr 15.9 |
Sensitivity to interest rate increase of 1 basis point |  |  | 1.0 |  |
Receivables write-offs |  |  | 21.0 | 35.0 |
Credit exposure |  |  | 100.0 | 400.0 |
Proceeds from issuance of borrowings |  |  | kr 3,615.0 | kr 19,728.0 | kr 10,755.0
Free cash flow before merger and acquisition as percent of net sales |  |  | 16.20% | (0.40%) |
Long term borrowings average maturity duration |  |  | 3 years 7 months 6 days | 3 years 2 months 12 days |
Nordic Investment Bank [Member] |  |  |  |  |
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |
Proceeds from issuance of borrowings | $ | $ 108 |  |  |  |
European Investment Bank [Member] |  |  |  |  |
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |
Proceeds from issuance of borrowings | $ |  | $ 184 |  |  |
Interest bearing liabilities [member] |  |  |  |  |
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |
Sensitivity to interest rate increase of 1 basis point |  |  | kr 8.0 |  |
Trade receivables [member] |  |  |  |  |
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |
Concentrations of risk |  |  | 45.00% | 47.00% |
Bottom of range [Member] | Scenario Forecast [Member] |  |  |  |  |
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |
Free cash flow before merger and acquisition as percent of net sales |  |  | 9.00% |  |
Average [member] | Interest bearing liabilities [member] |  |  |  |  |
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |
Sensitivity to interest rate increase of 1 basis point |  |  | kr 0.8 | kr 1.5 |
Top of range [Member] |  |  |  |  |
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |
Sensitivity to interest rate increase of 1 basis point |  |  | kr 10.0 |  |
Top of range [Member] | Scenario Forecast [Member] |  |  |  |  |
Disclosure Of Financial Risk Management [Line Items] |  |  |  |  |
Free cash flow before merger and acquisition as percent of net sales |  |  | 12.00% |  |

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